我国目前水文地质钻探,很多都在沉积很厚的第四纪和第三纪较松散的岩层中进行。根据水文地质要求,若用清水钻进,在钻进过程中往往会遇到很多困难,造成埋钻、卡钻、套管下不去,终孔不合要求等。为克服这些困难,许多队只好利用泥浆钻探,但这对水文地质资料的质量,无疑是有影响的。现在经多次研究试行了泥浆清水混合钻进的方法。证明质与 At present, hydrogeological drilling in our country is carried out mostly in relatively thick Quaternary and Tertiary sedimentary formations. According to the requirements of hydrogeology, if drilling with clear water, many difficulties are often encountered during the drilling process, causing burial, stuck pipe, under casing, and unqualified final hole. To overcome these difficulties, many teams had to use mud drilling, but this undoubtedly had an impact on the quality of hydrogeological data. After several studies have been tried muddy water mixed drilling method. Prove quality and